频率计设计的各个模块连接的总程序，即把分频器、控制器、计数器、闸门控制、锁存器、显示器都连接起来，测试频率范围为：10Hz～100MHz 第一档：闸门时间为1S时，最大读数为999.999KHz

第二档：闸门时间为0.1S时，最大读数为9999.99KHz

第三档：闸门时间为0.01S时，最大读数为99999.9KHz。

用六位BCD七段数码管显示读数。-The various modules connected to the total program, frequency meter design that are connected to the divider, controllers, counters, gate control, latches, display, test frequency range of: 10Hz ~~ 100MHz speed: gate time 1S when maximum readings 999.999KHz second gear: the gate time 0.1S maximum reading 9999.99KHz third tranche: gate time 0.01S, the maximum readings for 99999.9KHz. Readings with six BCD seven segment LED display.